Device for spinning and further treatment of artificial silk



pri T w38, o. BOCHMANN Origlna DEVICE FOR SPINNING AND FURTHER TREATMENT OF ARTIFICIAL SILK Patented Apr. 12, 1938 UNITED srares PATENT 'OFFICEy DEVICE FOR SPINNING AND TREATMENT F FURTHER ARTIFICIAL SILK Application April 17, 1931, Serial No. 530,832.

Renewed December April 19, 1930 11 Claims.

This invention relates to a device for spinning and further-treatment of artificial silk and particularly to a device for providing a kind of thread coil from untwisted silk, which is not wound on a rigid tube or bobbin, but is only on a base of textile'material, the protruding ends of which are bent over the coil. In the hitherto known spinning processes the winding of the spinning material is carried out on a firm base, for example, on an aluminium tube attached to the bobbin holder, on which the threads remain at l-east during the first washing treatment. In this procedure there is, however, the drawback that a proper further-treatment, such as, washing, eliminating the acid, bleaching, desulphurizing, drying etc., is not possible or is accompanied with diiiiculties, as the treatment liquids are not able sufficiently to penetrate the spinning material, thus necessitating very long periods of treatment. A further disadvantage is that the lower layers on the rigid spinning tube are not able to follow the shrinkages amounting up to 10% which arise in the further-treatment, espe-y cially in drying. The shrinkages only commence after unwinding the thread, so that in the direct working up into a piece of fabric an irregular, inferior product is produced. In addition to this the use of rigid aluminium tubes is very expensive.

These drawbacks are remedied by the use of the present improvement. An object of the improvement is to wind the spinning material without the use of rigid bases, e. g., a spinning tube, in order to guarantee a proper further-treatment, such as washing, eliminating the acid, desulphurizing, drying, dyeing etc., after withdrawing the loose spinning material from the winding member and no longer to make use of the expensive spinning tube used up to the present.

In using this improvement the spinning material is wound on a fabric placed on the winding member without the use of a rigid Winder, such as a spinning tube, which fabric also remains in the thread coil after the spinning, and protrudes over both sides of the coil. As winding member, or as base for the fabric, on which the thread is spun, there can be used the bobbin holder itself, which can be constructed in the shape of a bobbin, cylindrical or conical or partly cylindrical and partly conical, After the termination of the spinning 50 process the protruding ends of the fabric are drawn over the spinning material as a protection and both are removed from the winding member in this condition. In this form the further-treatment of the artificial silk, such as washing, eliminating the acid, desulphurizing, bleaching, drying,

30, 1936. In Germany dyeing etc., is carried out, whereby a complete penetration of all kinds of treatment liquids is assured, as the yarn is only surrounded by fabric. After the further-treatment has been completed, the untwisted goods can be transported in this 5. form or placed on a bobbin for subsequent twisting or re-winding, and the thread is removed after the covering fabric ends have been turned back.

The removal of the fabric with th-e spinning material from the winding member can be facilitated by previously laying bands on the bobbin holder in order to remove in this way the spinning material from the bobbin holder without injury.

By means of the present improvement the hitherto used expensive spinning tubes may be dispensed with and a proper further-treatment of the artificial silk or an assured penetration of the treatment liquids is guaranteed in the shortest time, whereby the possibility is afforded to the thread to shrink or to expand in the further treatment.

A preferred example of a device embodying the invention includes a preferablydinitted tubeshaped fabric, which is drawn over the winding member and on which the winding of the spinning material is done. The laying of the thread on the fabric is done in the well-known manner by a thread-guide moving to and fro. The winding member carrying the fabric can be constructed as a cylinder or as a cone, in order, especially in the latter form, to enable the fabric with the spinning material to be more easily removed from the winding member. The removal from the winding member can be still more facilitated in that bands are previously laid on the winding member which are connected at the rear ends by a ring, and the other ends of which are connected with each other in such a way that they can be gripped and withdrawn together. The pulling off of the fabric carrying the spinning material is done after the spinning process is ended, in that the two protruding fabric ends for the protection of the spinning material are drawn over the latter and then both are removed by pulling the bands. After the further treatment is completed the tube-shaped fabric containing the spinning material is placed on the windingmember for subsequent twisting or re-winding of the silk and after the covering ends have been turned back the thread is drawn off.

The drawing shows an example of a device embodying the invention. Figure 1 is a sectional view on the center line of the device and Figure 2 is an end elevation of the device shown in Figure l, taken from the left side of Figure 1.

On the winding member a there is a tubeshaped fabric o protruding at the ends and preferably knitted, on which the thread c is woundt The laying of the thread isrdone by the threadguides (not shown), which in themselves are known. The Winding organ is on a shaft e, which is driven for example, by Worm Ywheels (not shown). For the purpose of an easier withdrawal from the winding member a, it is advantageous to attach crossed bands h to the latter, which are connected with each other atY the rear end by a ring i and by this means allow an easy withdrawal of the tube-shaped fabric with the spinning material therein. After the further treatment is finished the fabric can be attached to a correspondingly constructed bobbin holder for the subsequent twistingl or re-winding of the silk, which holder in re-winding remains still and in twisting is correspondingly revolved.

I claim: Y

1. Device for collecting artificial silk comprising a bobbin-.like rotating winding .membeix a fabric thereon and means normally in engagementv with the fabric for facilitating the withdrawal of the thread and the fabric from the bobbinlike member.V Y

2. A device for collecting artificial silk comprising a rotating Winding member, a number of strip members on this winding member, which are placed parallel to and extend along the same, and a fabric lying over these strip members, said fabric being constructed and arranged to support the artificial ,silk= and said strip members being shaped to provide means for withdrawing them, together with the said fabric and artificial silk, from the winding member.

3. Device as in claim 2, in which the strip members are connected at the rear end of the rotating Winding member by a ring and at the ,1 means between the winding member and the fabric comprises continuous stripY members projecting longitudinally of the winding means on opposite sides thereof, said strip members being crossed at one end of the Winding member and fastened together at the other end thereof. Y

6. A device as defined in claim 4 in which the means to assist in removal comprises spaced members extendinglongitudinally of the winding members and connected at one end by a ring.

7. A device for collecting articial filaments comprising a rotatable winding member, a number of strip members on this Winding member which are placed in spaced relation and along the same, said strip members being shaped to provide means for withdrawing them together with the articial laments from the Winding member. Y

8. A device for collecting artificial filaments comprising a rotatable winding member, a number of strip members on this winding member which are placed in spaced relation and along theV same, said strip members being shaped to provide means for withdrawing them together with the artificial filaments from the Winding member and being crossed intermediate their ends and having their ends vconnected by a ring.

10. A device for collecting articial filaments :1.

comprising a rotatable winding member tapered toward its outer end, a number of strip members on this winding member which are placed in Vspaced relation and along the same, said strip members being shaped to provide means for withdrawing them together with the articial filaments from the winding member.

ll` A device for collecting artificial filaments comprising a rotatable winding member, a number of strip members on this Winding member exi tending longitudinallyl thereof and along the same, said strip members being shaped to provide means for withdrawing them together with the artificial filaments from the winding member.

OTTO BOCHMANN. 

